12/X=X/6
X^2=72
X= 8.48
X=8.5
18/y=y/12
Y-^2= 216
Y= 14.69
Y= 14.7
Answer:idek
Step-by-step explanation:same step
I see two lines. The degree measure of any line is 180°.
4y + 5y = 180°
9y = 180°
y = 180°/9
y = 20
First we must convert these mixed numbers to improper fractions:


So then we need the product of these two numbers. That means to multiply:

But then we need the value of half of this product. So then let's multiply by one-half:

Then we can convert this from an improper fraction to a mixed number:

And so this number is half of the product of the initial two numbers.
Answer:
9/4
Step-by-step explanation: